Finding the Fourth Proportional to 938,713.88, 1,408,245.98 and 426,415.00
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Solution
The fourth proportional to 938,713.88, 1,408,245.98 and 426,415.00 is: 639,702.07
Step by Step Solution
- Step 1: Write the proportion equation
938,713.88 : 1,408,245.98 = 426,415.00 : x - Step 2: Convert to fraction form
938,713.88/1,408,245.98 = 426,415.00/x - Step 3: Cross multiply
938,713.88x = 1,408,245.98 × 426,415.00 - Step 4: Simplify right side
938,713.88x = 600,497,213,689.80 - Step 5: Solve for x
x = 600,497,213,689.80/938,713.88 - Step 6: Final answer
x = 639,702.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.